node/deps/v8/test/mjsunit/array-join-nonarray-length-getter-side-effects.js
Michaël Zasso 7b48713334
deps: update V8 to 7.3.492.25
PR-URL: https://github.com/nodejs/node/pull/25852
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
2019-03-14 18:49:21 +01:00

30 lines
695 B
JavaScript

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
(function Throws() {
function TestError() {}
let callCount = 0;
const a = {
0: 1,
1: 2,
get length() {
callCount++;
throw new TestError();
}
};
assertThrows(() => Array.prototype.join.call(a), TestError);
assertSame(1, callCount);
// Verifies cycle detection still works properly after thrown error.
Object.defineProperty(a, 'length', {
get() {
callCount++;
return 2;
}
});
assertSame('1,2', Array.prototype.join.call(a));
assertSame(2, callCount);
})();